After transmigrating into the book, I helped my mother reconcile with her divorced husband.

The Crown Prince smiled, got into the carriage, and took the Seventh Princess into his arms. He pointed at Lu Zhiyuan and said, "Yin'er, this is my older sister, Sister Yuan'er."

The seventh princess stubbornly stretched out her hand, repeatedly calling out to Lu Zhiyuan, "Mother" and "Aunt."

The Crown Prince sighed and explained, "Yin'er is different from others, please don't take offense, A-Yuan."

Lu Zhiyuan rubbed her shoulders and back: "I'm used to it by now. His Highness the Crown Prince is busy with state affairs and probably doesn't know that the Emperor has sent the Seventh Princess to Ronghua Palace. I, Lu Zhiyuan, am only eight years old and have to take care of myself and him. And that chubby, greedy little prince, he runs to my Ronghua Palace eight times a day. My little kitchen is practically his."

"A chubby, greedy little prince?" Only after the guard's reminder did the Crown Prince realize who she was referring to. He chuckled, "Don't worry, he won't have another chance to enter the palace except for the New Year's festival. He's the young prince of the Yu Prince's residence. The Yu Prince is old, and the prince has been sent to a distant post. He's been with the nanny who cared for him since birth. When he was a month old, I visited the Yu Prince's residence on behalf of my father and mother. He's the easiest child I've ever raised; he wouldn't cry even if he was starving and nibbled on his fingers. If the wet nurse was there, he'd eat her milk; if she wasn't, he could manage with goat's milk and cow's milk. Three years have passed, and he's still a greedy child."

Lu Zhiyuan felt heartbroken upon hearing this.

Prince Yu was a decorated military leader in his youth, but due to the late emperor's suspicion, he feigned injury on the battlefield to relinquish his military power and became an unreliable and idle prince. Even so, the late emperor was still uneasy and had his household affairs sabotaged, resulting in him having few children, with only his heir growing up safely. To protect the heir's life, he was forbidden from learning martial arts or studying military strategy, and instead was instructed to study literature and pursue a career in government.

If I remember correctly, he and his second uncle took the imperial examination in the same year. His second uncle came first in the palace examination, and he came third. After the results were announced, he used the name of Prince Yu's mansion to find a sinecure and was sent out of the capital. Like his maternal grandfather, he returned to the capital at the end of the year and would leave again on the fourth or fifth day of the new year.

The little fat boy's mother lived in constant fear since entering the manor. She finally reached full term, but encountered an accident during childbirth. When the prince rushed back, the princess had already been laid to rest, leaving only the little fat boy lying quietly in his swaddling clothes.

For the sake of the chubby boy, the Crown Prince had considered finding another wife, but those women were all vain and only interested in the title of Crown Princess; none of them were truly sincere towards the chubby boy. The chubby boy wasn't obedient; he knew he had no one to rely on. He wasn't greedy either; he simply had nothing else to do besides eat.

Thinking of this, her heart softened, and she said to the Crown Prince, "If possible, please bring him to the palace often, Your Highness. He gets along well with the Seventh Princess. With him around, the Seventh Princess won't bother me all the time."

Upon hearing her name called, the Seventh Princess pouted and turned to the Crown Prince.

Lu Zhiyuan reached out and touched the back of her head, explaining, "It's not that I find you annoying, but I have a lot of things to do and can't keep up with your antics every day."

Before he could finish speaking, the Seventh Princess's eyes welled up with tears. The Crown Prince exclaimed in delight, "Yin'er is crying! Did she understand what you said?"

“She’s young, not stupid. How could she not understand what I’m saying?”

The Crown Prince glanced at the Seventh Princess in his arms and said awkwardly, "Yin'er is not as smart as other children. She has only cried and never laughed since she was little. Apart from eating and crying, she is always alone. She is three years old and can only say the few words just now. She can't even distinguish between the words 'mother,' 'mother,' 'empress,' and 'aunt.'"

“The Seventh Princess is very clever, but she is a little dull because she has been poisoned. She will be fine after treatment.” Lu Zhiyuan asked Lu Yun for a small piece of beef jerky and handed it to the Seventh Princess. While she was chewing the beef jerky, she took her pulse. “The Emperor also intended to send her to Ronghua Palace.”

The Crown Prince asked excitedly, "Can Yin'er's mental retardation be cured?"

"It can be cured, but the effect varies from person to person." He gestured for the Seventh Princess to switch hands. "The Seventh Princess's birth mother is Consort Yu, isn't she? To gain the Emperor's favor, Consort Yu used something she shouldn't have. In my opinion, this thing was definitely not incense, but rather something applied to Consort Yu's body. Anything unclean is bound to be poisonous, and its poison entered the Seventh Princess's body through her skin and blood. At that time, the Seventh Princess was still a fetus, still growing, and these toxins affected her brain, causing her to become somewhat mentally challenged."

The Crown Prince nodded: "That's true."

Lu Zhiyuan stopped: "If it were the newborn Seventh Princess, I would be confident that I could remove nine-tenths of the toxins from her body. Right now, I am only seven-tenths confident."

The Crown Prince breathed a sigh of relief: "Seven points is good enough! Father and Mother care about Yin'er very much. They don't expect her to be clever and quick-witted, but only that she can live like an ordinary person when she grows up. I am the Crown Prince and can ensure that she has enough to eat and wear, but in the end, she still has to live her own life."

"Don't worry, she will become an ordinary and happy seventh princess, just as you and the Empress wish." Lu Zhiyuan took out silver needles and, taking advantage of the seventh princess's distraction, pierced her acupoints.

The acupuncture needles were a little painful, but the Seventh Princess nestled in the Crown Prince's arms without moving, only chewing her beef jerky a little slower. After finishing the beef jerky, she stretched out her delicate white hand to Lu Zhiyuan.

"I left the palace in a hurry and didn't bring any medicine. I'll take it when I get back." Lu Zhiyuan tapped her little nose: "Sister asked Liuying to prepare some sweet candied fruit for you. It's all yours now that there's no little fat boy."

The seventh princess's eyes lit up, and she called out to Lu Zhiyuan "Mother" again.

Lu Zhiyuan was having a headache when the carriage suddenly stopped. Lu Zhiyuan lifted the curtain and heard Lu Yun say, "It's a carriage from the Wei family, and Lu Jinyao is sitting in it."

Before he could finish speaking, Lu Jinyao's voice came from across the street.

"My sister is truly remarkable; she managed to persuade the Emperor to allow her and the Crown Prince to escort the Empress Dowager together."

"My elder sister is no less so. His Highness the Prince of Yue is recuperating at home, and my sister, a concubine who has not yet entered the palace, actually used the identity of the Prince of Yue's mansion to send off the Empress Dowager. Those who know say that my sister is filial, but those who don't might think that my sister is eyeing the position of Princess Consort of Yue. Do you know that the position of Princess Consort of Yue has already been chosen? I advise my sister to do more and dream less. What does not belong to my sister, I can neither fight for nor take away."

"Look at what you're saying, little sister. Could it be that the Princess Consort of Yue is referring to you?" Lu Jinyao lifted the curtain and snorted coldly. "The words you advised me to say, little sister, are just what I'm saying to you."

"Sister's kindness is too much for me to bear," Lu Zhiyuan said deliberately. "It's just a pity that I'm lucky. What you've gone to great lengths to get, I can't refuse. What do you say, Crown Prince?"

The mention of "Crown Prince Brother" made Lu Jinyao's expression change, and when she saw that His Highness the Crown Prince was also sitting in the carriage, her expression became even more unpleasant. Although she was smiling, there was a hint of fear in her eyes.

Even the most lenient crown prince is still the crown prince. Offending the crown prince is the same as offending the empress, and offending the empress is the same as offending the emperor. If she offends the emperor, she, as a concubine in the Yue Prince's mansion, will probably never have a chance to turn her life around.

Thinking of this, she quickly got out of the carriage to apologize. The Crown Prince glanced at her, lowered the curtain, and ordered the coachman to continue.